
28
V 1.3 08/11
2011 INTEGRATED DEVICE TECHNOLOGY, INC.
92HD73E
Ten Channel HD Audio Codec
4. FUNCTIONAL BLOCK DIAGRAMS
4.1.
48QFP
Figure 9. 48QFP Functional Block Diagram
Stream &
Channel
Select
DAC 0
Stream &
Channel
Select
Stream &
Channel
Select
HD
A
udio
LIN
K
L
OGIC
PCM to
SPDIF OUT
SPDIF OUT0
vol
Pin Complex
Pins 35/36
DAC 1
vol
PORT D
Digital
Mute
Digital
Mute
Vendo
r
S
pec
ific
MU
X
ADC0
Pin 48
Pin 2
DMIC_0
No Bias
MU
X
ADC1
MUX
DMIC_1
Pin 3
Stream &
Channel
Select
MU
X
Pin Complex
Pins 39/41
PORT A
Mic Bias
Σ
vol
mute
vol
mute
vol
mute
CD
Digital Microphone
volume and mute is
done after the ADC
but shown here and
in widget list as
same as analog
path.
Stream &
Channel
Select
PCM to
SPDIF OUT
ADC0
MUX
ADC1
DAC0
DAC1
MixerOutVol
Boost
+0/+10/+20/+30 dB
Boost
+0/+10/+20/+30 dB
DMIC
EAPD/SPDIF_IN
Pin 40
Stream &
Channel
Select
DAC 2
vol
Digital
Mute
MU
X
DAC2
Stream &
Channel
Select
DAC 3
vol
Digital
Mute
MU
X
DAC3
Stream &
Channel
Select
DAC 4
vol
Digital
Mute
MU
X
DAC4
Pin Complex
Pins 16/17
PORT F
No Bias
Pin Complex
Pins 43/44
PORT G
No Bias
Pin Complex
Pins 45/46
PORT H
No Bias
Stream &
Channel
Select
SPDIF IN to PCM
Pin Complex
Pins 21/22
PORT B
Mic Bias
InMUX1
InMUX2
Pin Complex
Pins 23/24
PORT C
Mic Bias
Pin Complex
Pins 14/15
PORT E
Mic Bias
Pin Complex
Pins 18/19/20
CD (Port I)
vol
mute
InMUX0
ADC0
Stream &
Channel
Select
vol
Gain
+0 to +22.5 dB
In 1.5 dB steps
Port B
InMUX0
Port D
Port F
Port A
MU
X
Pin 47
SPDIF OUT1
1b
it
ADC1
1bit
Port B
Port C
Port D
Port A
Port E
MU
X
Port G
Port H
Mixer
Port F
CD
DMIC0
DMIC1
vol
Gain
mute
+0 to +22.5 dB
In 1.5 dB steps
Port B
Port C
Port D
Port A
Port E
MU
X
Port G
Port H
Mixer
Port F
CD
DMIC0
DMIC1
Vol
-46.5 to 0 dB
In 1.5 dB steps
InMUX3
Port E
InMUX1
Port G
Port H
Port A
MU
X
Port C
InMUX2
Port G
Port H
Port B
MU
X
DAC1
InMUX3
DAC2
DAC3
DAC0
MU
X
-34.5 to +12 dB
In 1.5 dB steps
Boost
+0/+10/+20/+30 dB
Port D
HP
MU
X
Boost
+0/+10/+20/+30 dB
Port A
HP
MU
X
Boost
+0/+10/+20/+30 dB
Port B
HP
MU
X
Boost
+0/+10/+20/+30 dB
Port C
LO
MU
X
Boost
+0/+10/+20/+30 dB
Port E
LO
MU
X
Boost
+0/+10/+20/+30 dB
Port F
LO
MUX
Boost
+0/+10/+20/+30 dB
Port G
LO
MU
X
Boost
+0/+10/+20/+30 dB
Port H
LO
CD
Digital
Mute
Digital
Mute
Digital
Mute
Mixer
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MUX
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
mute
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Digital PC Beep
mute
vol
mute
Analog PC_BEEP
-6,-12,-18, -24 dB
(Vendor Specific)
To all ports enabled as output